Setting up php code sniffer (phpcs), PHP Code Beautifier and Fixer, (php cbf), php stan and ading those rules to cursor

.cursorrules

@@ -6,3 +6,8 @@
 - add phpunit tests to all methods
 - add inline comments to all logic explaining the steps being taken
 - use readonly properties where appropriate
+- use phpstan annotations to improve code quality
+- use phpcs to enforce code style
+- use phpcbf to fix code style issues
+- apply all the rules defined in phpcs.xml
+- use phpunit to test all methods

.github/workflows/phpcbf.yml

@@ -0,0 +1,19 @@
+name: Run PHPCBF to fix code style issues
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.2'
+          tools: cs2pr, phpcbf
+
+      - name: Run phpcbf
+        run: phpcbf -q --report=checkstyle lib | cs2pr
+        continue-on-error: true

.github/workflows/phpcs.yml

@@ -0,0 +1,19 @@
+name: Run PHP Code Sniffer to enforce code style
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.2'
+          tools: cs2pr, phpcs
+
+      - name: Run phpcs
+        run: phpcs -q --report=checkstyle lib | cs2pr
+        continue-on-error: true

.github/workflows/phpstan.yml

@@ -0,0 +1,14 @@
+name: Run PHPStan to check for code quality issues
+
+on: [push]
+
+jobs:
+  build-test:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - uses: php-actions/composer@v6 # or alternative dependency management
+    - uses: php-actions/phpstan@v3
+      with:
+        path: lib/

phpcs.xml

@@ -0,0 +1,154 @@
+<?xml version="1.0"?>
+<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="PHP_CodeSniffer" xsi:noNamespaceSchemaLocation="phpcs.xsd">
+    <description>The coding standard for PHP_CodeSniffer itself, for more config -> for https://github.com/squizlabs/PHP_CodeSniffer/wiki/Configuration-Options.</description>
+
+    <file>README.md</file>
+    <file>src</file>
+
+    <arg name="basepath" value="."/>
+    <arg name="colors"/>
+    <arg name="parallel" value="75"/>
+
+    <!-- Don't hide tokenizer exceptions -->
+    <rule ref="Internal.Tokenizer.Exception">
+        <type>error</type>
+    </rule>
+
+    <!-- Include the whole PEAR standard -->
+    <rule ref="PEAR">
+        <exclude name="PEAR.NamingConventions.ValidFunctionName"/>
+        <exclude name="PEAR.NamingConventions.ValidVariableName"/>
+        <exclude name="PEAR.Commenting.ClassComment"/>
+        <exclude name="PEAR.Commenting.FileComment.MissingCategoryTag"/>
+        <exclude name="PEAR.Commenting.FileComment.MissingPackageTag"/>
+        <exclude name="PEAR.Commenting.FileComment.MissingLinkTag"/>
+        <exclude name="PEAR.Commenting.FileComment.MissingVersion"/>
+        <exclude name="PEAR.Commenting.InlineComment"/>
+    </rule>
+
+    <!-- Include some sniffs from other standards that don't conflict with PEAR -->
+    <rule ref="Squiz.Arrays.ArrayBracketSpacing"/>
+    <rule ref="Squiz.Arrays.ArrayDeclaration"/>
+    <rule ref="Squiz.ControlStructures.ControlSignature"/>
+    <rule ref="Squiz.ControlStructures.ElseIfDeclaration"/>
+    <rule ref="Squiz.Commenting.ClosingDeclarationComment"/>
+    <rule ref="Squiz.Commenting.BlockComment"/>
+    <rule ref="Squiz.Commenting.DocCommentAlignment"/>
+    <rule ref="Squiz.Commenting.EmptyCatchComment"/>
+    <rule ref="Squiz.Commenting.InlineComment"/>
+    <rule ref="Squiz.Commenting.LongConditionClosingComment"/>
+    <rule ref="Squiz.Commenting.PostStatementComment"/>
+    <rule ref="Squiz.Commenting.VariableComment"/>
+    <rule ref="Squiz.Formatting.OperatorBracket"/>
+    <rule ref="Squiz.Functions.FunctionDeclarationArgumentSpacing"/>
+    <rule ref="Squiz.Operators.ComparisonOperatorUsage"/>
+    <rule ref="Squiz.PHP.DisallowInlineIf"/>
+    <rule ref="Squiz.Scope.MethodScope"/>
+    <rule ref="Squiz.Strings.ConcatenationSpacing"/>
+    <rule ref="Squiz.WhiteSpace.ControlStructureSpacing"/>
+    <rule ref="Squiz.WhiteSpace.FunctionClosingBraceSpace"/>
+    <rule ref="Squiz.WhiteSpace.FunctionSpacing"/>
+        <properties>
+            <property name="spacing" value="1"/>
+            <property name="spacingAfterLast" value="0"/>
+            <property name="spacingBeforeFirst" value="0"/>
+        </properties>
+    <rule ref="Squiz.WhiteSpace.MemberVarSpacing"/>
+    <rule ref="Squiz.WhiteSpace.OperatorSpacing"/>
+    <rule ref="Squiz.WhiteSpace.SuperfluousWhitespace"/>
+    <rule ref="Generic.Arrays.DisallowLongArraySyntax"/>
+    <rule ref="Generic.Commenting.Todo"/>
+    <rule ref="Generic.ControlStructures.DisallowYodaConditions"/>
+    <rule ref="Generic.ControlStructures.InlineControlStructure"/>
+    <rule ref="Generic.Formatting.DisallowMultipleStatements"/>
+    <rule ref="Generic.Formatting.SpaceAfterCast"/>
+    <rule ref="Generic.Files.LineLength">
+        <properties>
+            <property name="lineLimit" value="125"/>
+            <property name="absoluteLineLimit" value="150"/>
+        </properties>
+    </rule>
+    <rule ref="Generic.NamingConventions.ConstructorName"/>
+    <rule ref="Generic.PHP.DeprecatedFunctions"/>
+    <rule ref="Generic.PHP.LowerCaseKeyword"/>
+    <rule ref="Generic.Strings.UnnecessaryStringConcat"/>
+    <rule ref="Generic.WhiteSpace.IncrementDecrementSpacing"/>
+    <rule ref="PSR2.Classes.PropertyDeclaration"/>
+    <rule ref="PSR2.Methods.MethodDeclaration"/>
+    <rule ref="PSR2.Files.EndFileNewline"/>
+    <rule ref="PSR12.Files.OpenTag"/>
+    <rule ref="Zend.Files.ClosingTag"/>
+
+    <!-- PEAR uses warnings for inline control structures, so switch back to errors -->
+    <rule ref="Generic.ControlStructures.InlineControlStructure">
+        <properties>
+            <property name="error" value="true"/>
+        </properties>
+    </rule>
+
+    <!-- We use custom indent rules for arrays -->
+    <rule ref="Generic.Arrays.ArrayIndent"/>
+    <rule ref="Squiz.Arrays.ArrayDeclaration.KeyNotAligned">
+        <severity>0</severity>
+    </rule>
+    <rule ref="Squiz.Arrays.ArrayDeclaration.ValueNotAligned">
+        <severity>0</severity>
+    </rule>
+    <rule ref="Squiz.Arrays.ArrayDeclaration.CloseBraceNotAligned">
+        <severity>0</severity>
+    </rule>
+    <rule ref="Squiz.Arrays.ArrayDeclaration.CloseBraceNewLine">
+        <severity>0</severity>
+    </rule>
+
+    <!-- Check var names, but we don't want leading underscores for private vars -->
+    <rule ref="Squiz.NamingConventions.ValidVariableName"/>
+    <rule ref="Squiz.NamingConventions.ValidVariableName.PrivateNoUnderscore">
+        <severity>0</severity>
+    </rule>
+
+    <!-- Only one argument per line in multi-line function calls -->
+    <rule ref="PEAR.Functions.FunctionCallSignature">
+        <properties>
+            <property name="allowMultipleArguments" value="false"/>
+        </properties>
+    </rule>
+
+    <!-- Have 12 chars padding maximum and always show as errors -->
+    <rule ref="Generic.Formatting.MultipleStatementAlignment"></rule>
+
+    <!-- Ban some functions -->
+    <rule ref="Generic.PHP.ForbiddenFunctions">
+        <properties>
+            <property name="forbiddenFunctions" type="array">
+                <element key="sizeof" value="count"/>
+                <element key="delete" value="unset"/>
+                <element key="print" value="echo"/>
+                <element key="is_null" value="null"/>
+                <element key="create_function" value="null"/>
+                <element key="var_dump" value="null"/>
+            </property>
+        </properties>
+    </rule>
+
+    <!-- Private methods MUST not be prefixed with an underscore -->
+    <rule ref="PSR2.Methods.MethodDeclaration.Underscore">
+        <type>error</type>
+    </rule>
+
+    <!-- Private properties MUST not be prefixed with an underscore -->
+    <rule ref="PSR2.Classes.PropertyDeclaration.Underscore">
+        <type>error</type>
+    </rule>
+
+    <!-- The testing bootstrap file uses string concats to stop IDEs seeing the class aliases -->
+    <rule ref="Generic.Strings.UnnecessaryStringConcat">
+        <exclude-pattern>tests/bootstrap\.php</exclude-pattern>
+    </rule>
+
+    <!-- This test file specifically *needs* Windows line endings for testing purposes. -->
+    <rule ref="Generic.Files.LineEndings.InvalidEOLChar">
+        <exclude-pattern>tests/Core/Tokenizer/StableCommentWhitespaceWinTest\.php</exclude-pattern>
+    </rule>
+
+</ruleset>